Granted Patent
Utility
US 5,992,179 · App. 08/858,285
Process for manufacturing grin lenses
Inventors:
Xiaojie Xu, Michael E. Savard
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: May 19, 1997
Inventors
Xiaojie Xu
Michael E. Savard
Assignee (at issue)
LightPath Technologies, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.